Compilare: user.cpp: In function ‘int main()’: user.cpp:19:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d%d",&t,&n,&b,&d); ^ user.cpp:35:41: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&lin,&c1); ^ user.cpp:43:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&m); ^ user.cpp:46:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&iv,&jv); // citim varfurile ^ user.cpp:51:91: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf (fout,"%d\n", aa[ii+l-1][jj]-aa[ii-1][jj]-aa[ii+l-1][jj-l]+aa[ii-1][jj-j]); ^